Resources and Further Reading
A recent study stressing the benefits of a plant-based diet: http://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1002039
Putting into perspective the enormous environmental impact of global meat consumption and production: http://science.time.com/2013/12/16/the-triple-whopper-environmental-impact-of-global-meat-production/
A recent study suggests that the method of preparation of red meat influences type 2 diabetes risk: http://care.diabetesjournals.org/content/40/8/1041.long
An interesting study showing ancient hominids progression from a plant-based diet to seeds and then animal tissues and fats. The study shows through analysis of faecal matter that anatomically modern humans have been eating meat for many thousands of years: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4465628/
This study suggests that early humans were eating meat millions of years ago: https://www.nature.com/scitable/knowledge/library/evidence-for-meat-eating-by-early-humans-103874273
A good introduction to protein, both Animal and Plant, out of Harvard University: https://www.hsph.harvard.edu/nutritionsource/what-should-you-eat/protein/
The ketogenic diet, which has meat consumption as a fundamental component, is all the rage in the United States: https://www.hsph.harvard.edu/nutritionsource/healthy-weight/diet-reviews/ketogenic-diet/